Fiberglass vs. Fabric

What you described is what my plans call for. Wooden ribs with plywood
over but
routed inbetween. Then on top of the plywood I'm to install the fabric.
This is just one
of the areas that I want to replace the fabric with fiberglass. It is
obcviously not structural.
So replacing with fiberglass should give me a smoother, harder finish.
Also, I would like to know if this finish will give me a better gph for
trips not to mention maybe, just maybe a few more knots. Yes I would
love to talk to your friend.
Lou